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18 gru 2023 · std::unordered_set meets the requirements of Container, AllocatorAwareContainer, UnorderedAssociativeContainer.
In an unordered_set, the value of an element is at the same time its key, that identifies it uniquely. Keys are immutable, therefore, the elements in an unordered_set cannot be modified once in the container - they can be inserted and removed, though.
12 cze 2023 · Learn how to use unordered_set, an unordered associative container implemented using a hash table, in C++ Standard Template Library. See syntax, functions, examples, and time complexity of unordered_set operations.
Unordered set header. Header that defines the unordered_set and unordered_multiset container classes:
21 lis 2021 · unordered_set (std:: initializer_list < value_type > init, size_type bucket_count, const Allocator & alloc ) : unordered_set (init, bucket_count, Hash (), key_equal (), alloc) {}
Learn how to create, initialize, and manipulate an unordered set in C++ using the STL unordered_set header file. See examples of methods, iterators, and operations on unordered sets.
<unordered_set> unordered_set. public member function. <unordered_set> std:: unordered_set ::unordered_set. Construct unordered_set. Constructs an unordered_set container object, initializing its contents depending on the constructor version used: (1) empty container constructor (default constructor)
